AA 4102 then WN 1734 at Denver
Chicago O'Hare → Denver → Reno
Timetable, Denver time
08:40AA 4102 from Chicago O'Hare at the gate
20:50WN 1734 to Reno leaves the gate
12 h 10 apart on the timetable
WN 1734 leaves 12 h 10 after AA 4102 arrives on the timetable: more than half a day, so not a connection we count.